been ttc for 6 months ever since coming off contreception depo injection in Septemeber. Periods returned to normal almost straight afterwards so calculating ovulation dates was fairly easy. I am now 12 days late on my period, sore boobs, nausea, frequent urination and exhausasted! However I took a tesco own brand test 5 days ago which was a definate negative. Any similar experiences ?! Thankyouuu!xxx